By examining a karyotype, it is possible to determine
A) which of two related plant forms is a gametophyte, and which is a sporophyte.
B) the sex of an animal.
C) the age of a fungus.
D) A and B only
E) A, B, and C
Ans: D) A and B only
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Which of the following is NOT a typical cellular change that occurs during lung cancer?
A. cellular hyperplasia B. loss of ciliated cells C. cellular displasia D. elevated gas transport E. increases in basal cell number and thickening of epithelium
Which of the following particles are retained by clay soil and exchanged for hydrogen ions when plants take them up?
A. calcium & potassium B. calcium & copper C. iron & boron D. calcium & ammonium E. sodium & sulphur
Which of the following respiratory disorders might be cured in the future through the use of gene therapy?
A. asthma B. emphysema C. cystic fibrosis D. lung cancer E. pulmonary fibrosis
These are organism that consume both live plants and animals to fulfill their metabolic requirements in an ecosystem
A) Carnivores B) Primary consumers C) Omnivores D) Herbivores